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China MT-YC Series Traveling Block - API 8C Compliant Hoisting Equipment from Trusted Suppliers and Factory
Product Specifications
| Model | MTYG90 | MTYG135 | MTYG170 | MTYC170 | MTYC225 | MTYC315 | MTYC450 | |
| Max. Hook Load (kN) | 900 | 1350 | 1700 | 1700 | 2250 | 3150 | 4500 | |
| Diameter of Wire Line (mm) | 26 | 29 | 29 | 29 | 32 | 35 | 38 | |
| Number of Sheaves | 3 | 4 | 5 | 5 | 5 | 6 | 6 | |
| Overall Dimension (mm) | Length | 2005 | 3294 | 3400 | 2030 | 2294 | 2690 | 3110 |
| Width | 616 | 960 | 960 | 1060 | 1190 | 1350 | 1600 | |
| Height | 498 | 610 | 715 | 620 | 630 | 800 | 840 | |
| Weight (KGS) | 1250 | 4350 | 4590 | 2410 | 3788 | 5500 | 8300 | |
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Third party witness and inspection report available: Bureau Veritas (BV), CCS, ABS, SJS etc.
Compliance and Reliability
This series travelling block is manufactured in accordance with API Spec 8C, Drilling and Production Hoisting Equipment, the internationally recognized benchmark for traveling blocks, hooks, and related devices. It also conforms to the Chinese industry standard SY/T 5527, ensuring compliance with domestic requirements. To increase resistance to wear, the sheave grooves undergo quenching and surface hardening, enabling them to endure prolonged exposure to heavy drilling line contact without premature damage. Every unit is subject to rigorous inspection and load testing, so contractors can rely on consistent performance and reduced risk of downtime in demanding drilling environments.
🏅 API Spec 8C
🏅 SY/T 5527
🔩 Quenched Sheave Grooves
🔍 Rigorous Load Testing
Product Features
- ⚙️ The MT-YC traveling block is built with high strength sheaves and heavy duty bearings, providing smooth operation of the wire rope under dynamic loads.
- 🔄 A practical advantage is the interchangeability of its sheaves and bearings with those of the crown block when designed for the same hook load, which streamlines spare part management and simplifies maintenance logistics.
- 💰 This compatibility, combined with durable structural design, lowers operating costs while improving fleet wide efficiency for drilling contractors.
- 📐 Additional engineering attention has been given to alignment and load distribution, ensuring stable operation throughout extended drilling campaigns.
- 🛡️ With its durable construction and meet to global standards, the MT-YC traveling block represents a reliable, field proven choice for modern drilling applications.
Product Details

Traveling Block YC225

Traveling Block YC675
Frequently Asked Questions
Q
What standards does the MT-YC traveling block comply with?
The MT-YC traveling block is manufactured in accordance with API Spec 8C (Drilling and Production Hoisting Equipment) and the Chinese industry standard SY/T 5527, ensuring it meets both international and domestic regulatory requirements.
Q
What is the maximum hook load capacity available in the MT-YC series?
The series ranges from 900 kN (MTYG90) up to 4,500 kN (MTYC450), covering a wide spectrum of drilling rig hoisting requirements from light to ultra-heavy duty applications.
Q
Are the sheaves and bearings interchangeable with the crown block?
Yes. When designed for the same hook load, the sheaves and bearings of the MT-YC traveling block are interchangeable with those of the crown block. This significantly simplifies spare part management and reduces maintenance downtime on the rig.
Q
What surface treatment is applied to the sheave grooves?
The sheave grooves undergo quenching and surface hardening treatment to significantly increase wear resistance. This allows them to withstand prolonged contact with heavy drilling lines without premature deterioration.
Q
Is third-party inspection available for the traveling block?
Yes. Third-party witness and inspection reports are available from recognized certification bodies including Bureau Veritas (BV), CCS, ABS, SJS, and others upon request.
Q
What wire rope diameters are compatible with the MT-YC traveling block models?
Depending on the model, compatible wire rope (drilling line) diameters range from 26 mm (MTYG90) to 38 mm (MTYC450). Each model is matched to a specific wire line diameter to ensure optimal load transfer and operational safety.



